/// <summary>
        /// Constructor.  Acquire all necessary BeatSaberUi elements.
        /// </summary>
        /// <param name="flowCoordinator"></param>
        public BeatSaberUIController(FlowCoordinator flowCoordinator)
        {
            LevelSelectionFlowCoordinator = flowCoordinator;

            // gather controllers and ui elements.
            LevelPackViewController = LevelSelectionFlowCoordinator.GetPrivateField <LevelPacksViewController>("_levelPacksViewController");
            Logger.Debug("Acquired LevelPacksViewController [{0}]", LevelPackViewController.GetInstanceID());

            LevelPackDetailViewController = LevelSelectionFlowCoordinator.GetPrivateField <LevelPackDetailViewController>("_levelPackDetailViewController");
            Logger.Debug("Acquired LevelPackDetailViewController [{0}]", LevelPackDetailViewController.GetInstanceID());

            LevelPacksTableView = LevelPackViewController.GetPrivateField <LevelPacksTableView>("_levelPacksTableView");
            Logger.Debug("Acquired LevelPacksTableView [{0}]", LevelPacksTableView.GetInstanceID());

            LevelPackLevelsViewController = LevelSelectionFlowCoordinator.GetPrivateField <LevelPackLevelsViewController>("_levelPackLevelsViewController");
            Logger.Debug("Acquired LevelPackLevelsViewController [{0}]", LevelPackLevelsViewController.GetInstanceID());

            LevelPackLevelsTableView = this.LevelPackLevelsViewController.GetPrivateField <LevelPackLevelsTableView>("_levelPackLevelsTableView");
            Logger.Debug("Acquired LevelPackLevelsTableView [{0}]", LevelPackLevelsTableView.GetInstanceID());

            LevelDetailViewController = LevelSelectionFlowCoordinator.GetPrivateField <StandardLevelDetailViewController>("_levelDetailViewController");
            Logger.Debug("Acquired StandardLevelDetailViewController [{0}]", LevelDetailViewController.GetInstanceID());

            StandardLevelDetailView = LevelDetailViewController.GetPrivateField <StandardLevelDetailView>("_standardLevelDetailView");
            Logger.Debug("Acquired StandardLevelDetailView [{0}]", StandardLevelDetailView.GetInstanceID());

            BeatmapCharacteristicSelectionViewController = Resources.FindObjectsOfTypeAll <BeatmapCharacteristicSegmentedControlController>().First();
            Logger.Debug("Acquired BeatmapCharacteristicSegmentedControlController [{0}]", BeatmapCharacteristicSelectionViewController.GetInstanceID());

            LevelSelectionNavigationController = LevelSelectionFlowCoordinator.GetPrivateField <DismissableNavigationController>("_navigationController");
            Logger.Debug("Acquired DismissableNavigationController [{0}]", LevelSelectionNavigationController.GetInstanceID());

            LevelDifficultyViewController = StandardLevelDetailView.GetPrivateField <BeatmapDifficultySegmentedControlController>("_beatmapDifficultySegmentedControlController");
            Logger.Debug("Acquired BeatmapDifficultySegmentedControlController [{0}]", LevelDifficultyViewController.GetInstanceID());

            LevelPackLevelsTableViewRectTransform = LevelPackLevelsTableView.transform as RectTransform;
            Logger.Debug("Acquired TableViewRectTransform from LevelPackLevelsTableView [{0}]", LevelPackLevelsTableViewRectTransform.GetInstanceID());

            TableView tableView = ReflectionUtil.GetPrivateField <TableView>(LevelPackLevelsTableView, "_tableView");

            TableViewPageUpButton   = tableView.GetPrivateField <Button>("_pageUpButton");
            TableViewPageDownButton = tableView.GetPrivateField <Button>("_pageDownButton");
            Logger.Debug("Acquired Page Up and Down buttons...");

            PlayContainer = StandardLevelDetailView.GetComponentsInChildren <RectTransform>().First(x => x.name == "PlayContainer");
            PlayButtons   = PlayContainer.GetComponentsInChildren <RectTransform>().First(x => x.name == "PlayButtons");

            PlayButton     = Resources.FindObjectsOfTypeAll <Button>().First(x => x.name == "PlayButton");
            PracticeButton = PlayButtons.GetComponentsInChildren <Button>().First(x => x.name == "PracticeButton");

            SimpleDialogPromptViewControllerPrefab = Resources.FindObjectsOfTypeAll <SimpleDialogPromptViewController>().First();
        }